jQuery KeyUp for @

Question

How can I use

$('div').bind('keyup', function(e) {

   if(e.which == '@') {

   }

});

Wondering how I can get the @ symbol for keyup ?

Answer 1

Use the String.fromCharCode method. The reverse function is "@".charCodeAt(0).
The e.which will only hold sensible data about the pressed key at a keypress event. This event will trigger multiple times though, while a key is pressed down.

If you need a reliable method to check the character of a key during the keyup event, create a character map. This page will aid you.

$('div').bind('keypress', function(e) {
   var char = String.fromCharCode(e.which);
   if(char == '@') {

   }
});

Answer 2

You could try yourself before post such question

Go to JSBin and do a simple test:

http://jsbin.com/afapar/2/edit#javascript,html,live

Then you will know exactly what to look for.

---

by the way, because you need to worry about plenty on all mobile devices and browsers, I will suggest that you use indexOf() or a variant of it, for example:

$("#txt").bind("keyup", function(evt) {
   if( $(this).val().indexOf("@") > 0 ) {
       // got it
   }
});

or if you need to know if it's the last character written:

if( $(this).val().lastIndexOf("@") == $(this).val().length - 1) 
{
    // got it
}

Answer 3

This seems to be working.. http://jsfiddle.net/jNeH9/2/

$(document).bind('keyup', function(e) {
   if(e.which == 50 && e.shiftKey)
   {

   }

});